Click above for high-res gallery of the Pontiac G8 Street Concept

We couldn't help but listen to the comments of other onlookers as we closely inspected the G8 GXP Street Concept in the G8 booth. Every reaction was overwhelmingly positive, from the overall design to the motor. After all, what's not to like? For starters, the standard 6.2L V8 has been replaced with an LSX454 crate motor that uses the LSX Bowtie block, six-bolt LSX cylinder heads and a forged rotating assembly. In total, the 7.4L V8 pushes out a massive 638 horsepower and 600 lb-ft torque that's directed through a 6-speed automatic transmission. The exterior gets a makeover with new front and rear fascias, rocker panels, custom upper and lower grilles and black chrome trim. Inside, the G8 GXP Street Concept also gets custom leather trimmed seats, a new gauge cluster and more black chrome. Yeah, it's basically a four-door ZR1. You can look at all the details of the car in the gallery of live high-res photos below.

Gallery: SEMA 2008: Pontiac G8 Street Concept LIVE

Continue reading SEMA 2008: Pontiac G8 GXP Street Concept gets rave reviews on show floor

SEMA 2008: Pontiac G8 GXP Street Concept gets rave reviews on show floor originally appeared on Autoblog on Wed, 05 Nov 2008 10:58:00 EST. Please see our terms for use of feeds.

Click above for a high resolution image

One of the best parts about SEMA is getting to see the manufacturers build cars they might not otherwise. Take this G8 GXP Street Concept, for example. Sure, the 415-horsepower 6.2L V8 in the standard G8 GXP is plenty good enough, but why not stuff the new LSX454 crate engine from GM Performance Parts underneath the hood? The 7.4L V8 is good for a ZR1-matching 638 horsepower and 600 lb-ft torque, allowing this G8 to unashamedly call itself a true muscle car. Other features include stiffer springs and the brake package from the CTS-V as well as 20-inch black chrome wheels. The exterior has been given an aggressive makeover with a new front fascia with unique upper and lower grilles and a rear fascia that incorporates a diffuser and performance exhaust system. Inside are custom leather seats and a new gauge cluster. More details and plenty of photos are soon to come when we hit the show floor next week. Thanks for the tip, Jonathon!

[Source: GMInsideNews.com]

SEMA Preview: 638-horsepower Pontiac G8 GXP Street Concept originally appeared on Autoblog on Sat, 01 Nov 2008 12:25:00 EST. Please see our terms for use of feeds.